Flue oven cleaner



Nov. 9, 1937. F. J. AYERS FLUE OVEN CLEANER Filed Dec. 14, 1956 InventorAttorneys Patented Nov. 9, 1937 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to new and useful improvements in fiue orstove pipe ovens and has for its primary object to provide, in a manneras hereinafter set forth, novel means through 5 the medium of which sootand other accumulations may be expeditiously removed from the usualspaced walls of said oven.

Other objects of the invention are to provide a cleaner for flue orstove pipe ovens which will be comparatively simple in construction,strong, durable, highly efficient and reliable in use, compact and whichmay be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawing whereinlike characters of reference designate corresponding parts through theseveral views, and wherein:

Figure 1 is a view in side elevation of a flue oven equipped with acleaner constructed in accordance with the present invention, said ovenbeing broken away in section.

Figure 2 is a vertical sectional view, taken substantially on the line2-2 of Fig. 1.

Figure 3 is a detail view in section through the cleaner.

Figure 4 is an elevational view of the cleaner.

Figure 5 is a detail view in vertical section through one of the rodbearings mounted on the oven.

Referring now to the drawing in detail, it will be seen that thereference numeral I designates generally a flue oven which, as usual,comprises spaced inner and outer annular walls 2 and 3, respectively,said walls being in the form of cylinders providing an annular heatchamber 4 for the passage of smoke and other products of combustion. Aninlet 5 and an outlet 6, for connection with sections of a stove pipe,communicate with the chamber 4.

The inner cylinder 2 provides a heating chamber l which is closed at itsfront by a door 8. A tapered end Wall 9 closes the space between theinner and outer cylinders 2 and 3 at the front of the oven. The rear endof the oven l is closed by a wall l0.

Mounted for sliding movement in the chamber 4 between the inner andouter cylinders 2 and 3 50 is a scraper H in the form of a flat ring ofsuitable metal. Fixed to diametrically opposite portions of the ring Hand projecting horizontally therefrom are operating rods l2 which extendslidably through the end wall l and have fixed on their outer endssuitable knobs or handles l3. Openings l4 in the end wall I0 (see Fig.accommodate the rods I2. The rods I2 travel in bearings l5 which arefixed on the end wall ill in alignment with the openingsl4.

It is thought that the operation of the invention will be readilyapparent from a consideration of the foregoing. When it is desired toremovesoot or other accumulations from the walls of the annular chamber4 it is only necessary to grasp the knobs or handles l3 and reciprocatethe scraping ring H in said chamber. Through the medium of the pair ofrods [2 distortion and consequent binding of the annular scraping ringII, should it encounter particularly hard deposits or accumulations,will be prevented. By the construction and arrangement it is thoughtthat the entire wall area of the annular chamber 4 may be expeditiouslyand thoroughly cleaned with a few strokes of the scraping ring ll.

It is believed that the many advantages of a flue oven cleanerconstructed in accordance with the present invention will be readilyunderstood and although a preferred embodiment of the device is asillustrated and described, it is to be understood that changes in thedetails of construction and in the combination and arrangement of partsmay be resorted to which will fall within the scope of the invention asclaimed.

What is claimed:

In a flue oven of the type including spaced inner and outer cylindersproviding an annular chamber, end walls closing the space between saidcylinders at the ends thereof, one of said end walls having openings indiametrically opposite portions thereof, bearings fixed on said one endwall in alignment with the openings, a substantially flat metallic ringmounted for reciprocation in the annular chamber and adapted to removeaccumulations from the walls thereof, rods fixed on' diametricallyopposite portions of said ring and projecting at right angles therefrom,said rods extending slidably through the bearings, and operating knobsfixed on the outer ends of the rods.

FRANK J. AYERS.

